public void update() { tmpUsers.Clear(); tmpAnnouncements.Clear(); tmpTmpAnnouncements.Clear(); foreach (User user in userRepository.getAll()) { if (user.id != CurrentUser.User.id) { tmpUsers.Add(user); } } foreach (Announcement announcement in announcementRepository.getAll()) { tmpAnnouncements.Add(announcement); } foreach (TmpAnnouncement announcement in tmpAnnouncementRepository.getAll()) { tmpTmpAnnouncements.Add(announcement); } }